Safety data sheets are available at:
https://betongtransporter.se/uploaded/Dokument/Produktblad_bygel.pdf

The flatbed should be lifted using the holes with a hook, not a strap, as this can cause chafing. The pallets must be lifted one at a time. A maximum of 4 pallets may be stacked vertically. The skids must be empty of cargo/materials during lifting.
The image below shows how straps are used in a way that is extremely dangerous.

